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2 Diamonds Multicolor Defense sugested

#1 User is offline   calabres 

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Posted 2007-March-21, 09:53

Hi all

A very common opening as 2 Multi is played in diferent ways:

- Some pairs use only as a weak opening 6 cards or
- Others add a possible balanced hand 20/21 or more usualy 22/23.
- Some partnerships add the possibility of a strong hand in any minor.

I realize that on BBO, specialy beginner and intermediate players had lots of dificulty to make a defense against this kind of opening.

I leave here my sugested defense:

2nd position:

DBL = 13/15 or 19+
2NT = 16/18 bal
2/ = short (Promises min 4 c. in other Major
3 x = natural

4th position:

Over 2 = DBL » opening with s
Over 2 = DBL » opening with s
Over any = 3 is overcall, short in bided suit
2NT = 16/18 bal
( If ptn x in 2nd…2NT is LEB )

6th position:

2NT = Minors
3/ = / + Other Major

I hope this can help. Other sugestions wellcome.
calabres
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#2 User is offline   paulg 

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Posted 2007-March-21, 11:38

Chris Ryall provides a number of defences on his excellent web site.
The Beer Card

I don't work for BBO and any advice is based on my BBO experience over the decades
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#3 User is offline   inquiry 

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Posted 2007-March-21, 12:34

This is a very useful site. I am particularily fond of the defense entitled multi-verus-multi, which gets its own webpage.

The link above has complete details (including follow up auctions), but the gist of this defense is that a "double" of 2 is itself multi-color and can be any of the following hands....
  • An opening hand with 5+ 's
  • An opening bid in spades as above
  • A big balanced hand (range suggested is 19 - poor 22 point)
  • 19+ three suited hand

Note: major one suiter or big big balanced hand in with the double is very similar to the type of hands the 2 opener can hold (except the major is in an opening hand instead of weak). Some even include the strong 3 suiter in the mix of multi-2 openers.

This leaves other bids as....
    2 = balanced hand less than 19 (goodish 15 up to a crappy 19)
    2 = transfer to 3 and not weak. Partner can bid 3 with weak hand, or 2NT as having some interest in going higher
    2NT = transfer to 3, and again 3 is a relay with advancer having interest in going higher).

With the transfer bids to 3 and 3 available, this free's up an immediate overcall of 3 and 3 to be preempts before they have even found out if they have a fit or not and without overly exciting advancer.
--Ben--

#4 User is offline   jtfanclub 

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Posted 2007-March-21, 13:01

I don't get to play against it much...

What I really want is a system where:

2nd seat X: 12-18 hcp, intending to pass 2nd time around (no penalty X of either major).
2nd seat pass 1st time, X the second time: Penalty.

That gives both hands a chance to X for penalties, and gives 4th hand enough knowledge of 2nd hand's strength to X for penalties relatively lightly.

Anybody know of such a system?

(Yes, I do play Fishbein. Why do you ask?)
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#5 User is offline   cnszsun 

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Posted 2007-March-21, 19:22

I once asked for the simple defence to multi 2 at http://forums.bridge...showtopic=17705.

I'm interested to know more about your method.
1)

Quote

2nd position:

DBL = 13/15 or 19+
2NT = 16/18 bal
2♥/♠ = short (Promises min 4 c. in other Major
3 x = natural


If 2/2 is not natural, how do you show a 5 cards major opening hand?

2)

Quote

4th position:

Over 2♥ = DBL » opening with ♥s
Over 2♠ = DBL » opening with ♠s
Over any = 3♣ is overcall, short in bided suit
2NT = 16/18 bal
( If ptn x in 2nd…2NT is LEB )


Some will play double of 2/2 as takeout, what's the advantage?
Michael Sun

#6 User is offline   calabres 

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Posted 2007-March-22, 11:18

Michael

As shown, when you have in 2nd seat a good hand with 5 cards, you just bid at level 3.

About second question I just put here the defense I play, of course others available, depending what you agree with your partner.

Regards
calabres
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